Disconnect the unit power.
Garage door opener light does not turn on.
In this situation the only option is to replace the logic board or the entire garage door opener.
Step 5 lights still on.
A common cause of a malfunctioning garage door sensor is lack of power supply.
Put the screws back in and plug the opener back in.
Then reconnect the opener.
If you find that your lights aren t turning off unplug and replug the opener.
Plug the opener back in.
If the light is still not coming on it could be the light socket or the logic board.
Light socket or logic board unplug the garage door opener then immediately plug the opener back into the electrical outlet.
Sensor power reconnect the sensor to its power supply.
If they re turned on in both the sensors then there is no issue with the power supply.
Listen for the light.
Since you re up there take the opportunity to also clean out the housing area and be sure to remove dust from the socket.
First disconnect the garage door opener from all power.
Unplug the garage door opener then immediately plug the opener back into the electrical outlet.
If you hear a click replace the light socket if you do not hear a click replace the logic board.
This is an easy fix but caution must be used.
Reset the light timer to the lowest setting 90 seconds instead of 4 minutes.
More specifically if your garage door light won t shut off it is most likely due to one of these reasons.
Another common cause of light bulb failure i have found is that the brass tab in the bottom of the light bulb socket has been bent down too far and is not making contact and completing the electric circuit.
Cfl light bulb base is too wide for opener light socket.
Brass contacts in opener light socket are.
Try these steps to fix the issue.
Disconnect the wiring from the opener.
If your garage door opener light is not working the fix might.
Doing so will reset it but don t abuse this tip.
After 90 seconds reconnect the power and see if the lights come on.
To determine which one it is follow the steps below.
Garage door lights sometimes malfunction.
If your garage door opener craftsman liftmaster chamberlain genie sommer decko has no power but it is plugged in the circuit breaker is on and you know for sure the electrical outlet has power then there is something in the garage door opener that is faulty.
To install the new bulb just screw it in.
There is an electrical issue in the opener.
Compact fluorescent light bulbs have a wider base than.
If your liftmaster garage door light won t turn off or on there is likely a problem with your door s motion sensor or light timer.